Oklahoma HVACR Limited Journeyman Contractor Highlighted & Tabbed Book Package

Prepare for the Oklahoma HVACR Limited Journeyman examination with an organized set of highlighted and tabbed reference books designed to support efficient study and open-book exam preparation. This package brings together important references covering mechanical code requirements, fuel gas systems, refrigeration and air conditioning, trade mathematics, and construction safety.

The Oklahoma HVACR Limited Journeyman Contractor Highlighted & Tabbed Book Package includes the International Mechanical Code, 2018, International Fuel Gas Code, 2018, Modern Refrigeration and Air Conditioning, 22nd Edition, Mathematics for Plumbers and Pipefitters, 8th Edition, and Code of Federal Regulations - 29 CFR Part 1926 (OSHA).

Each included book is highlighted and tabbed to provide an organized starting point for your preparation. Highlighting helps draw attention to important material, while tabs make it easier to move between major sections, chapters, and technical subjects during study sessions.

Because the Oklahoma HVACR Limited Journeyman examination is open book, candidates should become familiar with their references before test day. Knowing which book applies to a particular question and where to begin searching can be an important part of developing an effective exam strategy.

Please allow up to 15 business days for highlighted and tabbed book package orders.

Exam Details

The Oklahoma HVACR Journeyman Limited examination evaluates knowledge related to the installation, maintenance, repair, fabrication, alteration, and extension of air conditioning, refrigeration, heating, and ventilation systems, including ductwork, within the scope of the limited HVACR classification.

• Exam: Oklahoma HVACR Journeyman Limited
• Testing Provider: PSI
• Number of Questions: 60
• Time Allowed: 180 minutes
• Passing Score: 70%
• Passing Raw Score: 42 correct answers
• Exam Format: Open book

The examination covers several major HVACR knowledge areas, including Electrical Knowledge and Controls, Natural Gas, Air Distribution Systems, Refrigeration and Air Conditioning Systems, Heating Systems, and Safety.

Electrical Knowledge and Controls can include general electrical theory, motors, AC and DC circuits, and controls. HVACR equipment depends heavily on electrical components and control systems, so candidates should understand how electrical principles relate to heating, cooling, refrigeration, and ventilation equipment.

Natural Gas subjects include piping, valves, connectors, accessories, hangers and supports, materials, sizing, testing, installation, and related requirements. Candidates should be comfortable navigating the International Fuel Gas Code when preparing for these topics.

Air Distribution Systems may involve duct definitions, sizing and design, installation, duct materials, insulation, hangers and supports, ventilation requirements, exhaust systems, fire and smoke control, testing and balancing, and interpretation of plans and symbols.

Refrigeration and Air Conditioning Systems can include refrigeration theory, refrigerants, equipment sizing and design, system components, piping, installation, system operation, troubleshooting, and maintenance. Heating Systems can include heating theory, combustion air, vents and chimneys, equipment sizing, installation, hydronics, system operation, troubleshooting, and maintenance.

Safety preparation can involve workplace requirements such as personal protective equipment, fall protection, ladders, scaffolds, employee safety, hazardous conditions, and other construction-industry requirements found in OSHA regulations.

Open Book Test

The Oklahoma HVACR Journeyman Limited examination is an open book test. Candidates may bring approved reference materials into the examination center according to the testing provider's published rules.

Approved reference materials may be highlighted, underlined, and indexed before the examination. Permanent tabs are permitted. Temporary tabs such as Post-it notes are not allowed, and references may not contain written notes.

This makes familiarity with the books an important part of exam preparation. Open book does not mean unlimited time. With 60 questions and 180 minutes, candidates have an average of approximately three minutes per question. Some questions may be answered quickly from trade knowledge, while others may require a reference lookup or calculation.

A useful strategy is to identify the subject before opening a book. Mechanical equipment, ventilation, ductwork, combustion air, and installation requirements may direct you toward the International Mechanical Code. Fuel gas piping, sizing, venting, appliances, and testing may require the International Fuel Gas Code.

Refrigeration theory, air conditioning systems, heating equipment, electrical concepts, system components, servicing, and troubleshooting may involve Modern Refrigeration and Air Conditioning. Mathematics for Plumbers and Pipefitters can support calculation-based preparation, while 29 CFR Part 1926 provides construction safety requirements.

The highlighted and tabbed format helps candidates organize these different resources. Instead of searching randomly through an unfamiliar book, candidates can practice moving directly toward the chapters and subjects most likely to contain the information they need.

Repeated navigation practice is especially valuable for open-book testing. During your study sessions, choose a topic, identify the correct reference, and locate the appropriate chapter, section, table, formula, or definition. This helps combine trade knowledge with practical book-navigation skills.

Licensing Steps

The Oklahoma Construction Industries Board administers mechanical journeyman licensing. Candidates pursuing an HVACR Limited Journeyman license must complete the applicable experience, application, examination, and licensing requirements.

1. Work as a mechanical apprentice. Gain qualifying HVACR experience while meeting Oklahoma apprentice registration requirements applicable to the work being performed.
2. Build qualifying mechanical experience. Accumulate the experience needed for the HVACR Limited Journeyman category.
3. Meet the journeyman qualification requirements. Oklahoma allows qualifying pathways involving mechanical trade experience and certain approved education combined with experience.
4. Submit the mechanical license application. Apply through the Oklahoma Construction Industries Board for the appropriate journeyman category.
5. Receive examination approval. Once the application is approved, the candidate can proceed with scheduling the required examination.
6. Take the HVACR Journeyman Limited examination. Prepare for the technical subjects and approved open-book references before testing.
7. Complete the licensing process. Follow the Oklahoma Construction Industries Board requirements for obtaining and maintaining the HVACR Limited Journeyman license.

Oklahoma describes the mechanical licensing path as progressing from apprentice to journeyman and potentially to contractor. Journeymen work for an active licensed mechanical contractor and perform work within the scope of the journeyman license classification.

State Requirements

Applicants for an Oklahoma mechanical journeyman license must be at least 18 years old and meet an approved experience or education-and-experience pathway.

One pathway requires three years of verifiable experience in the mechanical trade in the category for which the applicant is applying. Oklahoma also recognizes certain approved mechanical education programs combined with specified amounts of qualifying mechanical experience.

For Oklahoma experience to count toward licensing, mechanical apprentices generally need to maintain the required apprentice registration while gaining qualifying experience. Oklahoma defines one year of verifiable mechanical experience as 2,000 hours.

The HVACR Limited Journeyman license allows qualifying work involving cooling products, systems, or equipment, including process piping, with a cooling capacity of no more than 25 tons.

The classification also covers qualifying heating equipment, including process piping, with a heat input of no more than 500,000 Btu/h per appliance.

The scope also includes sheet metal, natural gas piping, and refrigeration work within the HVACR Limited Journeyman classification.

A licensed journeyman works for an active licensed mechanical contractor. Candidates should understand the limits of the HVACR Limited classification so they know how the credential fits into Oklahoma's mechanical licensing structure.

Reference Books

The Oklahoma HVACR Limited Journeyman Contractor Highlighted & Tabbed Book Package includes the following references:

• International Mechanical Code, 2018
  Covers mechanical-system requirements involving ventilation, duct systems, equipment installation, exhaust systems, refrigeration, combustion air, chimneys, vents, and related mechanical installations. The highlighted and tabbed format helps candidates practice moving through important code sections during preparation.
• International Fuel Gas Code, 2018
  Covers fuel gas piping systems, valves, connectors, materials, sizing, testing, combustion air, venting, appliances, and other fuel gas requirements. This book supports preparation for Natural Gas and heating-related code subjects.
• Modern Refrigeration and Air Conditioning, 22nd Edition
  Provides extensive HVACR technical coverage, including refrigeration theory, refrigerants, air conditioning, heating, electrical principles, controls, motors, system components, equipment installation, maintenance, system operation, service, and troubleshooting.
• Mathematics for Plumbers and Pipefitters, 8th Edition
  Provides trade-focused mathematics covering measurements, formulas, conversions, area, volume, piping calculations, and other mathematical concepts relevant to mechanical trade work.
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  Contains federal construction-industry safety requirements covering workplace hazards, personal protective equipment, fall protection, ladders, scaffolds, employee safety, and other construction safety topics.

Each reference has a different role in preparation. The International Mechanical Code and International Fuel Gas Code support code-based research. Modern Refrigeration and Air Conditioning provides broader HVACR technical knowledge. Mathematics for Plumbers and Pipefitters supports calculation skills, while OSHA regulations support safety preparation.

The highlighted and tabbed format is intended to help candidates build familiarity with these references through repeated use. Candidates should still learn how each book is organized and understand the underlying technical subjects instead of relying on tabs alone.

Exam Room Approved Books

The International Mechanical Code, 2018; International Fuel Gas Code, 2018; Modern Refrigeration and Air Conditioning; Mathematics for Plumbers and Pipefitters, 8th Edition; and Code of Federal Regulations - 29 CFR Part 1926 are among the reference materials associated with the Oklahoma HVACR Journeyman Limited examination.

PSI's rules permit later editions of non-code references while code questions remain based on the specific code edition listed for the exam. The listed code editions for this examination are the 2018 International Mechanical Code and 2018 International Fuel Gas Code.

Approved books may be highlighted, underlined, and indexed before testing. Permanent tabs are permitted, making a properly prepared highlighted and tabbed reference set useful for candidates who want to practice with organized books before exam day.

Candidates should use the references regularly during preparation. The more familiar you become with where information is located, the easier it can be to choose the correct book when working through an open-book practice question.

Test Information and Study Materials

A strong Oklahoma HVACR Limited Journeyman study plan should combine technical review, code navigation, calculations, safety preparation, and repeated use of the reference books.

For Refrigeration and Air Conditioning Systems, review refrigeration principles, refrigerants, equipment and components, piping, equipment sizing, installation, operation, troubleshooting, and maintenance. Use Modern Refrigeration and Air Conditioning during study sessions so you become familiar with where major technical subjects are located.

For Heating Systems, study heating principles, combustion air, vents and chimneys, equipment sizing, installation, hydronic systems, system operation, maintenance, and troubleshooting. Heating questions can require both technical knowledge and the ability to locate code requirements.

Natural Gas preparation should include piping, valves, connectors, supports, materials, sizing, testing, combustion air, venting, and appliances. Practice using the International Fuel Gas Code so you know where these subjects are organized.

Air Distribution Systems preparation should include duct sizing and design, assembly, materials, supports, insulation, ventilation, exhaust systems, fire and smoke requirements, testing and balancing, and plans and symbols.

Electrical Knowledge and Controls should include general electrical theory, AC and DC circuits, motors, and HVACR controls. Candidates who spend most of their field time on mechanical installation may benefit from dedicating additional study time to electrical concepts and control systems.

Trade mathematics should be practiced through actual problems. Work on measurements, conversions, formulas, area, volume, and other mechanical calculations. Instead of simply memorizing formulas, practice determining which calculation is needed and how the information provided in a question should be used.

Safety preparation should include direct navigation of 29 CFR Part 1926. Practice finding requirements related to personal protective equipment, ladders, scaffolds, fall protection, workplace hazards, and employee safety.

Mixed-reference practice can help create a more realistic open-book study environment. Work through questions from different subjects during the same study session. A sequence might include a mechanical code question, a natural gas question, a refrigeration concept, an electrical control topic, a mathematical calculation, and an OSHA safety requirement.

Before opening a reference, determine which book is most likely to contain the answer. This simple habit can help prevent unnecessary searching and reinforce your understanding of how the books relate to the different examination subjects.

With 180 minutes available for 60 questions, time management matters. Candidates should aim to answer familiar questions efficiently while using references strategically when additional confirmation or technical detail is needed.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports Oklahoma HVACR Limited Journeyman candidates through organized study guidance, trade-focused review, practice-oriented preparation, reference navigation, and confidence-building study structure.

The highlighted and tabbed books provide an organized foundation for studying mechanical codes, fuel gas systems, refrigeration, air conditioning, heating, electrical concepts, trade mathematics, and construction safety.

Reference navigation is particularly important for an open-book exam. Candidates should practice identifying which reference applies to a question and locating the appropriate section efficiently. Repeated practice can help develop familiarity with indexes, chapters, definitions, tables, formulas, and technical sections.

Trade-focused review also helps candidates identify subjects that need additional attention. An experienced HVACR technician may be comfortable with refrigeration equipment but need more practice with fuel gas requirements, electrical controls, mathematics, or OSHA regulations. Another candidate may understand installation work but need additional code-navigation practice.

1 Exam Prep encourages candidates to use the references throughout their preparation instead of waiting until exam day. Combining technical review with book-navigation practice helps create a more complete study routine.

The goal is to help you approach the Oklahoma HVACR Limited Journeyman examination with stronger familiarity with both the technical material and the references associated with the exam, while building confidence through consistent preparation and practice.

FAQ Section

What books are included in the Oklahoma HVACR Limited Journeyman Highlighted & Tabbed Book Package?

The package includes the International Mechanical Code, 2018; International Fuel Gas Code, 2018; Modern Refrigeration and Air Conditioning, 22nd Edition; Mathematics for Plumbers and Pipefitters, 8th Edition; and Code of Federal Regulations - 29 CFR Part 1926 (OSHA).

Are the books highlighted and tabbed?

Yes. All included books are highlighted and tabbed to support organized study and more efficient reference navigation.

How long should I allow for my order?

Please allow up to 15 business days for highlighted and tabbed book package orders.

Is the Oklahoma HVACR Limited Journeyman exam open book?

Yes. The Oklahoma HVACR Journeyman Limited examination is open book and allows approved reference materials under PSI testing rules.

How many questions are on the exam?

The examination contains 60 questions, and candidates receive 180 minutes to complete the test.

What score is required to pass?

The passing score is 70 percent, which corresponds to 42 correct answers on the 60-question examination.

What subjects are covered?

The examination covers Electrical Knowledge and Controls, Natural Gas, Air Distribution Systems, Refrigeration and Air Conditioning Systems, Heating Systems, and Safety.

Can approved exam books be highlighted and tabbed?

Yes. Approved references may be highlighted, underlined, and indexed before testing. Permanent tabs are permitted, while temporary tabs such as Post-it notes are not allowed.

What does the Oklahoma HVACR Limited Journeyman license cover?

The classification covers qualifying cooling products, systems, and equipment up to 25 tons and heating equipment up to 500,000 Btu/h per appliance. It also includes qualifying sheet metal, natural gas piping, and refrigeration work within the license scope.

How should I use highlighted and tabbed books while studying?

Use the books with technical review and practice questions. Learn which reference applies to each subject and repeatedly practice finding chapters, code sections, tables, formulas, technical explanations, and safety requirements.

Are tabs enough to prepare for an open-book exam?

No. Tabs are navigation tools. Candidates should also understand HVACR concepts, practice using the references, work through calculations, and become familiar with the structure of each book before testing.